Tube flaring tool



Jan. 7, 1936. G. R.l GAGNE 2,027,161

TUBE FLARING' TOOL Filed oct. l19,- 1931 [NI/EN TOR.

Gz'dean vA); Gane A TTORNE Y.

Patented Jan. 7, 1936 UNITED STATES I TUBE FLARING'` TOOL Gideon R;Gagne, Kenosha, Wis., assignor to Snap-on Tools, Inc., Kenosha, Wis., acorporation of Delaware Application october 19, 1931, serial No. 569,582

more particularly to a tube-flaring device, al-

though certain features thereof may be employed with equal advantage forother purposes. It contemplates more especially the provision of aportable device for flaring the tube extremities Without requiring anyappreciable equipment or special facilities. A Y

There are numerous occasions for flaring the extremities of tubes inthat replacements are frequently occasioned in automobiles and otherinstallations. In fact, the copper tubing re- `storted to in automobilesfor establishing communication between the gasoline tank and carf.bureter serves only to illustrate the far-reaching uses of tubing.Tubing of this character is connected to variousinstrumentalities by aunion or threaded nipple which is mounted thereon for turning relativeto a flared tube extremity serving to'retain the nipple against removal.p There are numerous occasions for replacing such tubes or inserting anew portion therein, and-in consequence thereof it is necessary or atleast highly desirable to enable the aring, of the extremities so thatan effective connection may be established. The joints mustnecessarilybe fluid-tight, and the effectiveness thereof depends largely on thetype of tube extremityvvhich engages the connecting union or nipple. Inconsequence thereofy it is exceedingly important to provide a uniformand more or less perfect flare on the-tube extremity so as to afford asuccessful joint or tube connection. p y

One object of the present invention is to simplify the construction andimprove the operation of, devices ,of the character mentioned.

Another object is to provide an improved tool for flaring the extremityof tubes and similar devices.

Still another object is to provide a novel device for flaring theextremity of various sized tubular conduits.

A further. object is. the provision of a simple and effective portable`device for flaring the extremities of tubular conduits so as to afforda fluid-tight connection therewith.

A still further object is to provide an effective and; simple device forflaring the extremities of tubes, without entailing much labor or time.

Other objects and advantages Will appear fromthe,-folloWing `descriptionof an illustrative embodiment of the present invention.

In the drawing:

Figure 1 is a plan View of a device embodying features of the presentinvention,

Figure 2 is a sectional view taken substantially along line II--II ofFigure 1, and

Figure 3 is a sectional view taken substantially along line III-III ofFigure 2.

The structure selected for illustration com- `5 prises a circular bodymember I0 which is preferably split into half-sections I I and I2 whichare complemental to each other for contact along their adjacent surfacesI3. Threaded studs I4, in this instancetwo, are anchored in the bottom1z0 section I2 for projection through correspondingly-shaped aperaturesformed in the top section II. Wing-nuts I5 threadedly` engage the studs,I4 toretain the half-sections II and I2 in association for selectivecontact responsive to I5 turning tight the Wing-nuts I5 in the customarymanner. A pin I6 is anchored in the bottom section l2 to any suitableradial position so as to register with aperture II formed in the topsection II, thereby guiding the half-sections II 20 and I2 for accurateregistry.

A plurality of bores Il', I8, I9 and 20, in this instance four, areprovided radially in the body member I0 so that the diametral linethereof corresponds with the contacting surfaces I3 of 25 thehalf-sections I I and I2, thereby placing half of the bores Il', I8, I9and 20 in both sections II and`I2 for` complemental association inlongitudinal alignment. With this arrangement, the bores Il, I8, I9 and20 are of sectional formation 30 for the reception of tubular conduits2|.

In consequence` thereof, the bores Il, I8, I9 and 2lir are of variousdiameters to correspond with the standard sizes of tubes that aregenerally used-in different situations occurring in commerce, and theseare in axial alignmentwith bores 22, 23, 24 and 25, respectively. Thelattermentioned bores 22, 23, 24 and 25 are of identical size/to receivea cylindrical impacting device 26. The impacting device 26 is slightlytapered and has` a nurled extremity 2l to enable the convenientmanipulation and handling thereof. As shown, the impacting or hammerdevice 26 terminates in a conical tip 28 which corresponds in 45inclination and configuration With tapered seats 29 formed at the innerorifice of the bores Il', llll, I9 and 2E! as delinedby a circularaperture 2liv provided in the body member I0 so as to be in alignment inboth half-sections II and I2. Infshort, the-tubular conduit bores Il',I8, I9 and 20- are interrupted with respect to their correspondinglyaligned impacting device receiving bores 22, 23, 24 and 25 so that anyone of these sets of bores may be utilized at selective times to flarethe extremity of correspondingly sized tubing 2l.

The tubing 2l is placed in a correspondingly sized bore, in thisinstance bore I8, with the Wingnuts l5 sufciently loosened for the freereception thereof. The tubing 2 IY projects beyond the inner orice ofthe bore I8 for a slight distance commensurate with the seat 29 thereof,and the Wing-nuts are thereupon tightened to securely clamp the tubing2l. The impacting device or hammer device 26, thereupon is inserted inthe bore 23 which is in alignment with the bore I8, and contact isestablished With the mouth of the tubing 2|. `A hammer or other tappingdevice is utilized to strike the extremity 3l of the impacting device 26so as to deform the extremity of the tubing 2l by daring such tocorrespond with the confronting impacting tip 28 and bore seat 29. As aresult, a flaring extremity 32 is provided on the tubing 2| so that anipple or other securing Ydevice may be placed thereon for contact andretention by the flaring extremity 32 thereof. In

this manner, a dared extremity may be formed on any tubing and thedevice is portable so as to be utilized in any situation. To enable themore convenient handlingof the body member I0, the exterior periphery 33is nurled in the customary manner. It is to be noted that any number ofbores may be provided in the body member I0, and the device may beutilized in a very effective and simple manner Without entailing muchlabor or time. v

Various changes may be made in the embodiment of the invention hereinspecifically described Without departing from or sacrificing any of theadvantages of the invention as dened in the appended claims.

I claim:

1. In a device of the character described, the combination of a circularbody having radially disposed bores of different diameters in said bodythere being an opening in said body to interrupt said bores, there beingtapered seats at the interrupted extremities of said bores in oneportion of said body, and a flaring tool member displaceable in thebores of the other portion of said body for the purpose set forth.

2. In a device of the character described, the combination of a circularbody having radially disposed bores of different diameters in said body,there being an opening in said body to interrupt said bores, there beingtapered seats at the interrupted extremities of said bores in oneportion of said body, and an impacting member having a tapered extremitycorresponding to said seats, said Yimpacting member being reciprocablein the bores of the other portion of said body for the purpose setforth.

Y 3. In a device of the character described, the combination of acircular body comprising symmetrical sections having radially disposedbores of different diameters in said body, there being an opening insaid body to interrupt said bores, there being tapered seats attheinterrupted extremities of said bores in one portion of said body, anim-V pacting member having a tapered extremity corresponding to saidseats, said impacting member being reciprocable in the bores of theother portion of said body for the purpose set forth.

4. In a device of the character described, the

lcombination of a circular body comprising symmetrical sections andhaving radially disposed bores of. different diameters in said body,there being an opening in said body to interrupt said bores, there beingtapered seats at the interrupted extremities of said bores in oneportion of said body, an impacting member having a tapered 5 extremitycorresponding to said seats, said irnpacting member being reciprocablein the bores of the other portion of said body for the purpose setforth, and means for detachably connecting said body sections to grasptubing in said taper-seated bores.

5. In a device of the character described, the combination of a circularbody comprising symmetrical sections and having radially disposed boresof diierent diameters in said body, there being an opening in said bodyto interrupt said bores, there being tapered seats at the interruptedextremities of said bores in one portion of said body, and an impactingmember having a tapered extremity corresponding to said seats, saidimpacting member being reciprocable in the bores of the other portion ofsaid body for the purpose set forth, means for detachably connectingsaid body sections to grasp tubing in said taper-seated bores, and meansfor guiding the association and disassociation of said body sections.

6. In a device of the character described, the combination with a splitmetallic body having a plurality of sectional bores provided therein,there being an opening in said body to interrupt said plurality ofbores, said bores in one portion on said body each being of differentdiameters for receiving correspondingly sized tubes, each of said boresof different diameters having tapered 35 seats at the interruptedextremities thereof, said bores in the other portion of said body beingof the same diameter, a flaring tool member adapted for removabledisplacement in the said last named bores of the other portion of saidbody, and adjustable clamping fasteners for holding tubes in said rstmentioned sectional bores in axial alignment with said last mentionedbores for the purpose set forth.

'7. In a device of the character described, the combination with acircular metallic body having a plurality of radial bores providedtherein, there being an axial opening in said body to interrupt saidplurality of bores, said bores in one portion on said body each being ofdiiferent diameters for receiving correspondingly sized tubes,adjustable means associated with said body for tightly holding tubesagainst removal from said bores in the last named body portion, each o1'said bores of different diameters having tapered 5 seats at theinterrupted extremities thereof, said bores in the other portion of saidbody being of the same diameter, and flaring means displaceable in saidlast named bores of the other portion of said body to cooperate withsaid tapered seats for the purpose set forth.

8. In a device of the character described, the combination of a circularbody having radially disposed bores of different diameters in said body,there being an opening in said body to interrupt said bores, there beingtapered seats at the interrupted extremities of said bores in oneportion of said body, and flaring means displaceable in said bores ofthe other portion of said body to cooperate with Said tapered seats forthe purpose set fOrth,

